Ford offers a dizzying array of F-150 pickup trucks, from luxury models to stripped work trucks. That's why truck shoppers, more than most, have to know what they need. If you tow all the time at max weight, you'll want one of Ford's recent, big V-8s--either the 6.2-liter, the 5.0-liter, or the previously available 5.4-liter--though its newer twin-turbo V-6 is rated above 11,000 pounds towing in some configurations. If you're just carrying tools or mulch, look at an extended-cab V-6, and pocket the change.